> Hi,
> I understand that, but I close ems, and Delphi, reboot, start Delphi
> run my app and the same error 'used by another process'
>
> Daniel
>

forget the reboot.
You must have two separate connections. One is legitimate and the second
will get that error.
You can't be connected via the IDE AND THEN run your app - that's a second
connection.
Alan